I did two dive trips after my OW (Nassau and Cozumel). I did my EAN cert before my AOW, but as I understand now, PADI has changed the requirements for EAN cert, but at any rate, the AOW is just an introduction to advanced diving. It is, nevertheless, more experience. Since Deep and Navigation are requirements, and you've logged about 12 dives since your OW, I would definitely recommend the peak performance buoyancy dive as part of your AOW. Night diving would be another definite if I were you.
After AOW, I would certainly recommend Rescue Diver, as it is a course I believe every diver should take, if it is only to learn the principles of self rescue.